New Phytologist最新文献

Theory and tests for coordination among hydraulic and photosynthetic traits in co-occurring woody species. 共生木本植物的水力和光合特性之间协调的理论和测试。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-07-24 DOI: 10.1111/nph.19987

Shubham S Chhajed, Ian J Wright, Oscar Perez-Priego

{"title":"Theory and tests for coordination among hydraulic and photosynthetic traits in co-occurring woody species.","authors":"Shubham S Chhajed, Ian J Wright, Oscar Perez-Priego","doi":"10.1111/nph.19987","DOIUrl":"10.1111/nph.19987","url":null,"abstract":"Co-occurring plants show wide variation in their hydraulic and photosynthetic traits. Here, we extended 'least-cost' optimality theory to derive predictions for how variation in key hydraulic traits potentially affects the cost of acquiring and using water in photosynthesis and how this, in turn, should drive variation in photosynthetic traits. We tested these ideas across 18 woody species at a temperate woodland in eastern Australia, focusing on hydraulic traits representing different aspects of plant water balance, that is storage (sapwood capacitance, CS), demand vs supply (branch leaf : sapwood area ratio, AL : AS and leaf : sapwood mass ratio and ML : MS), access to soil water (proxied by predawn leaf water potential, ΨPD) and physical strength (sapwood density, WD). Species with higher AL : AS had higher ratio of leaf-internal to ambient CO2 concentration during photosynthesis (ci : ca), a trait central to the least-cost theory framework. CS and the daily operating range of tissue water potential (∆Ψ) had an interactive effect on ci : ca. CS, WD and ΨPD were significantly correlated with each other. These results, along with those from multivariate analyses, underscored the pivotal role leaf : sapwood allocation (AL : AS), and water storage (CS) play in coordination between plant hydraulic and photosynthetic systems. This study uniquely explored the role of hydraulic traits in predicting species-specific photosynthetic variation based on optimality theory and highlights important mechanistic links within the plant carbon-water balance.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1760-1774"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141753072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bas Bargmann. 巴斯-巴尔格曼

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-10-01 DOI: 10.1111/nph.20163

引用次数: 0

The phosphate starvation response regulator PHR2 antagonizes arbuscule maintenance in Medicago. 磷酸盐饥饿反应调节因子 PHR2 可拮抗美蒂莎草的轴丝维持。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-05-27 DOI: 10.1111/nph.19869

Peng Wang, Yanan Zhong, Yan Li, Wenqian Zhu, Yuexuan Zhang, Jingyang Li, Zuohong Chen, Erik Limpens

{"title":"The phosphate starvation response regulator PHR2 antagonizes arbuscule maintenance in Medicago.","authors":"Peng Wang, Yanan Zhong, Yan Li, Wenqian Zhu, Yuexuan Zhang, Jingyang Li, Zuohong Chen, Erik Limpens","doi":"10.1111/nph.19869","DOIUrl":"10.1111/nph.19869","url":null,"abstract":"Phosphate starvation response (PHR) transcription factors play essential roles in regulating phosphate uptake in plants through binding to the P1BS cis-element in the promoter of phosphate starvation response genes. Recently, PHRs were also shown to positively regulate arbuscular mycorrhizal colonization in rice and lotus by controlling the expression of many symbiotic genes. However, their role in arbuscule development has remained unclear. In Medicago, we previously showed that arbuscule degradation is controlled by two SPX proteins that are highly expressed in arbuscule-containing cells. Since SPX proteins bind to PHRs and repress their activity in a phosphate-dependent manner, we investigated whether arbuscule maintenance is also regulated by PHR. Here, we show that PHR2 is a major regulator of the phosphate starvation response in Medicago. Knockout of phr2 showed reduced phosphate starvation response, symbiotic gene expression, and fungal colonization levels. However, the arbuscules that formed showed less degradation, suggesting a negative role for PHR2 in arbuscule maintenance. This was supported by the observation that overexpression of PHR2 led to enhanced degradation of arbuscules. Although many arbuscule-induced genes contain P1BS elements in their promoters, we found that the P1BS cis-elements in the promoter of the symbiotic phosphate transporter PT4 are not required for arbuscule-containing cell expression. Since both PHR2 and SPX1/3 negatively affect arbuscule maintenance, our results indicate that they control arbuscule maintenance partly via different mechanisms. While PHR2 potentiates symbiotic gene expression and colonization, its activity in arbuscule-containing cells needs to be tightly controlled to maintain a successful symbiosis in Medicago.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1979-1993"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141159215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bigger genomes provide environment-dependent growth benefits in grasses. 较大的基因组可为禾本科植物带来依赖环境的生长优势。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-10-01 DOI: 10.1111/nph.20150

Kimberley J Simpson, Sahr Mian, Elisabeth J Forrestel, Jan Hackel, Joseph A Morton, Andrew R Leitch, Ilia J Leitch

{"title":"Bigger genomes provide environment-dependent growth benefits in grasses.","authors":"Kimberley J Simpson, Sahr Mian, Elisabeth J Forrestel, Jan Hackel, Joseph A Morton, Andrew R Leitch, Ilia J Leitch","doi":"10.1111/nph.20150","DOIUrl":"10.1111/nph.20150","url":null,"abstract":"Increasing genome size (GS) has been associated with slower rates of DNA replication and greater cellular nitrogen (N) and phosphorus demands. Despite most plant species having small genomes, the existence of larger GS species suggests that such costs may be negligible or represent benefits under certain conditions. Focussing on the widespread and diverse grass family (Poaceae), we used data on species' climatic niches and growth rates under different environmental conditions to test for growth costs or benefits associated with GS. The influence of photosynthetic pathway, life history and evolutionary history on grass GS was also explored. We found that evolutionary history, photosynthetic pathway and life history all influence the distribution of grass species' GS. Genomes were smaller in annual and C4 species, the latter allowing for small cells necessary for C4 leaf anatomy. We found larger GS were associated with high N availability and, for perennial species, low growth-season temperature. Our findings reveal that GS is a globally important predictor of grass performance dependent on environmental conditions. The benefits for species with larger GS are likely due to associated larger cell sizes, allowing rapid biomass production where soil fertility meets N demands and/or when growth occurs via temperature-independent cell expansion.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"2049-2061"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142330522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Divide and conquer: using RhizoVision Explorer to aggregate data from multiple root scans using image concatenation and statistical methods. 分而治之：使用 RhizoVision Explorer，利用图像连接和统计方法汇总来自多个根扫描的数据。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-10-06 DOI: 10.1111/nph.20151

Anand Seethepalli, Chanae Ottley, Joanne Childs, Kevin R Cope, Aubrey K Fine, John H Lagergren, Udaya Kalluri, Colleen M Iversen, Larry M York

{"title":"Divide and conquer: using RhizoVision Explorer to aggregate data from multiple root scans using image concatenation and statistical methods.","authors":"Anand Seethepalli, Chanae Ottley, Joanne Childs, Kevin R Cope, Aubrey K Fine, John H Lagergren, Udaya Kalluri, Colleen M Iversen, Larry M York","doi":"10.1111/nph.20151","DOIUrl":"10.1111/nph.20151","url":null,"abstract":"Roots are important in agricultural and natural systems for determining plant productivity and soil carbon inputs. Sometimes, the amount of roots in a sample is too much to fit into a single scanned image, so the sample is divided among several scans, and there is no standard method to aggregate the data. Here, we describe and validate two methods for standardizing measurements across multiple scans: image concatenation and statistical aggregation. We developed a Python script that identifies which images belong to the same sample and returns a single, larger concatenated image. These concatenated images and the original images were processed with RhizoVision Explorer, a free and open-source software. An R script was developed, which identifies rows of data belonging to the same sample and applies correct statistical methods to return a single data row for each sample. These two methods were compared using example images from switchgrass, poplar, and various tree and ericaceous shrub species from a northern peatland and the Arctic. Most root measurements were nearly identical between the two methods except median diameter, which cannot be accurately computed by statistical aggregation. We believe the availability of these methods will be useful to the root biology community.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"2101-2108"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142382123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contrasting drought tolerance traits of woody plants is associated with mycorrhizal types at the global scale. 在全球范围内，木本植物不同的耐旱特性与菌根类型有关。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-09-05 DOI: 10.1111/nph.20097

Xiaorong Liu, Kailiang Yu, Hui Liu, Richard P Phillips, Pengcheng He, Xingyun Liang, Weize Tang, César Terrer, Kimberly A Novick, Emily P Bakpa, Min Zhao, Xinbo Gao, Yi Jin, Yin Wen, Qing Ye

{"title":"Contrasting drought tolerance traits of woody plants is associated with mycorrhizal types at the global scale.","authors":"Xiaorong Liu, Kailiang Yu, Hui Liu, Richard P Phillips, Pengcheng He, Xingyun Liang, Weize Tang, César Terrer, Kimberly A Novick, Emily P Bakpa, Min Zhao, Xinbo Gao, Yi Jin, Yin Wen, Qing Ye","doi":"10.1111/nph.20097","DOIUrl":"10.1111/nph.20097","url":null,"abstract":"It is well-known that the mycorrhizal type of plants correlates with different modes of nutrient cycling and availability. However, the differences in drought tolerance between arbuscular mycorrhizal (AM) and ectomycorrhizal (EcM) plants remains poorly characterized. We synthesized a global dataset of four hydraulic traits associated with drought tolerance of 1457 woody species (1139 AM and 318 EcM species) at 308 field sites. We compared these traits between AM and EcM species, with evolutionary history (i.e. angiosperms vs gymnosperms), water availability (i.e. aridity index) and biomes considered as additional factors. Overall, we found that evolutionary history and biogeography influenced differences in hydraulic traits between mycorrhizal types. Specifically, we found that (1) AM angiosperms are less drought-tolerant than EcM angiosperms in wet regions or biomes, but AM gymnosperms are more drought-tolerant than EcM gymnosperms in dry regions or biomes, and (2) in both angiosperms and gymnosperms, variation in hydraulic traits as well as their sensitivity to water availability were higher in AM species than in EcM species. Our results suggest that global shifts in water availability (especially drought) may alter the biogeographic distribution and abundance of AM and EcM plants, with consequences for ecosystem element cycling and ultimately, the land carbon sink.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"2024-2035"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic and epigenetic reprogramming in response to internal and external cues by induced transposon mobilization in Moso bamboo. 毛竹通过诱导转座子调动对内部和外部线索做出的遗传和表观遗传重编程。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-09-05 DOI: 10.1111/nph.20107

Long-Hai Zou, Bailiang Zhu, Yaxin Chen, Yaping Lu, Muthusamy Ramkrishnan, Chao Xu, Xiaohong Zhou, Yiqian Ding, Jungnam Cho, Mingbing Zhou

{"title":"Genetic and epigenetic reprogramming in response to internal and external cues by induced transposon mobilization in Moso bamboo.","authors":"Long-Hai Zou, Bailiang Zhu, Yaxin Chen, Yaping Lu, Muthusamy Ramkrishnan, Chao Xu, Xiaohong Zhou, Yiqian Ding, Jungnam Cho, Mingbing Zhou","doi":"10.1111/nph.20107","DOIUrl":"10.1111/nph.20107","url":null,"abstract":"Long terminal repeat retroelements (LTR-REs) have profound effects on DNA methylation and gene regulation. Despite the vast abundance of LTR-REs in the genome of Moso bamboo (Phyllostachys edulis), an industrial crop in underdeveloped countries, their precise implication of the LTR-RE mobility in stress response and development remains unknown. We investigated the RNA and DNA products of LTR-REs in Moso bamboo under various developmental stages and stressful conditions. Surprisingly, our analyses identified thousands of active LTR-REs, particularly those located near genes involved in stress response and developmental regulation. These genes adjacent to active LTR-REs exhibited an increased expression under stress and are associated with reduced DNA methylation that is likely affected by the induced LTR-REs. Moreover, the analyses of simultaneous mapping of insertions and DNA methylation showed that the LTR-REs effectively alter the epigenetic status of the genomic regions where they inserted, and concomitantly their transcriptional competence which might impact the stress resilience and growth of the host. Our work unveils the unusually strong LTR-RE mobility in Moso bamboo and its close association with (epi)genetic changes, which supports the co-evolution of the parasitic DNAs and host genome in attaining stress tolerance and developmental robustness.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1916-1930"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transport of water to leaves implies whole-plant coordination of hydraulic and photosynthetic traits. 将水分输送到叶片意味着水力和光合作用特性的全植物协调。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-08-12 DOI: 10.1111/nph.20045

Cate Macinnis-Ng

引用次数: 0

Forest plant indicator values for moisture reflect atmospheric vapour pressure deficit rather than soil water content. 森林植物水分指标值反映的是大气蒸汽压力不足，而不是土壤含水量。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-08-22 DOI: 10.1111/nph.20068

Martin Kopecký, Lucia Hederová, Martin Macek, Tereza Klinerová, Jan Wild

{"title":"Forest plant indicator values for moisture reflect atmospheric vapour pressure deficit rather than soil water content.","authors":"Martin Kopecký, Lucia Hederová, Martin Macek, Tereza Klinerová, Jan Wild","doi":"10.1111/nph.20068","DOIUrl":"10.1111/nph.20068","url":null,"abstract":"Soil moisture shapes ecological patterns and processes, but it is difficult to continuously measure soil moisture variability across the landscape. To overcome these limitations, soil moisture is often bioindicated using community-weighted means of the Ellenberg indicator values of vascular plant species. However, the ecology and distribution of plant species reflect soil water supply as well as atmospheric water demand. Therefore, we hypothesized that Ellenberg moisture values can also reflect atmospheric water demand expressed as a vapour pressure deficit (VPD). To test this hypothesis, we disentangled the relationships among soil water content, atmospheric vapour pressure deficit, and Ellenberg moisture values in the understory plant communities of temperate broadleaved forests in central Europe. Ellenberg moisture values reflected atmospheric VPD rather than soil water content consistently across local, landscape, and regional spatial scales, regardless of vegetation plot size, depth as well as method of soil moisture measurement. Using in situ microclimate measurements, we discovered that forest plant indicator values for moisture reflect an atmospheric VPD rather than soil water content. Many ecological patterns and processes correlated with Ellenberg moisture values and previously attributed to soil water supply are thus more likely driven by atmospheric water demand.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1801-1811"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142037440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GLABRA2 transcription factor integrates arsenic tolerance with epidermal cell fate determination. GLABRA2 转录因子将砷耐受性与表皮细胞命运决定结合在一起。

IF 9.4 1区生物学

New Phytologist Pub Date : 2024-12-01 Epub Date: 2024-09-05 DOI: 10.1111/nph.20099

Micaela Andrea Navarro, Cristina Navarro, Luis Eduardo Hernández, María Garnica, José Manuel Franco-Zorrilla, Yogev Burko, Sara González-Serrano, José M García-Mina, José Pruneda-Paz, Joanne Chory, Antonio Leyva

{"title":"GLABRA2 transcription factor integrates arsenic tolerance with epidermal cell fate determination.","authors":"Micaela Andrea Navarro, Cristina Navarro, Luis Eduardo Hernández, María Garnica, José Manuel Franco-Zorrilla, Yogev Burko, Sara González-Serrano, José M García-Mina, José Pruneda-Paz, Joanne Chory, Antonio Leyva","doi":"10.1111/nph.20099","DOIUrl":"10.1111/nph.20099","url":null,"abstract":"Arsenic poses a global threat to living organisms, compromising crop security and yield. Limited understanding of the transcriptional network integrating arsenic-tolerance mechanisms with plant developmental responses hinders the development of strategies against this toxic metalloid. Here, we conducted a high-throughput yeast one-hybrid assay using as baits the promoter region from the arsenic-inducible genes ARQ1 and ASK18 from Arabidopsis thaliana, coupled with a transcriptomic analysis, to uncover novel transcriptional regulators of the arsenic response. We identified the GLABRA2 (GL2) transcription factor as a novel regulator of arsenic tolerance, revealing a wider regulatory role beyond its established function as a repressor of root hair formation. Furthermore, we found that ANTHOCYANINLESS2 (ANL2), a GL2 subfamily member, acts redundantly with this transcription factor in the regulation of arsenic signaling. Both transcription factors act as repressors of arsenic response. gl2 and anl2 mutants exhibit enhanced tolerance and reduced arsenic accumulation. Transcriptional analysis in the gl2 mutant unveils potential regulators of arsenic tolerance. These findings highlight GL2 and ANL2 as novel integrators of the arsenic response with developmental outcomes, offering insights for developing safer crops with reduced arsenic content and increased tolerance to this hazardous metalloid.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1882-1900"},"PeriodicalIF":9.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0